Air purifier



FIG. 1 is a perspective view of an air purifier showing the claimeddesign in accordance with the present disclosure;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a perspective view of the air purifier, wherein a fragrancebox of the air purifier is separated from a body of the air purifier;and,

FIG. 10 is an enlarged view of an encircle portion 10 in FIG. 1.

The broken lines in the Figures are for the purpose of illustratingportions of the article that form no part of the claimed design.

The dash-broken lines encircling portions of the claimed design that areillustrated in enlargements form no part of the claimed design.

CLAIM The ornamental design for an air purifier, as shown and described.